A highly potent and subtype-selective agonist for the α4β2 and α6β2 nicotinic acetylcholine receptors. Activates α-CTx-MII-sensitive and -insensitive components of [3H]dopamine release from rat striatal synaptosomes, corresponding to α6β2 and α4β2 (EC50 values are 12.7 and ~35 nM respectively). ~5000-, 25000- and 140000-fold selective over α3β4, α7 and muscle nAChR receptors respectively. Precursor also available.. Purity 99%. MW (observed): 363.03